It looks as though the live package is working. If you're not seeing an iso in /tmp , please look into live_data_4072 to see if somehow your iso was built inside there. After a successful build it will tell you where that iso was built though.
The ¨live_data_4072¨ directory´s properties tell me it is 19MB big.
When I look inside, it shows two sub directories: boot, vector.
boot contains: /dos, /isolinux, /syslinux, and other files like initrd.gz, vmlinuz, spash.cfg, to mention some of them!
vector contains: /base, /config, /modules, /optional, /rootcopy, /tools and txt-files like changelog.txt among others!
I´m going to follow Uelsk8s route and get the source package new....